The AZO Lifting column is anchored as a free-standing unit to the floor or mounted with additional installation fixtures to the ceiling or wall. The lifting function is performed by an electrical drive unit while the chain gear mechanism moves the drive chain. The drive system moves the carriage with the attached load platform vertically up and down. An optional overload safety device shuts down the drive in the case of excessive load. The mechanical brake on the drive unit prevents the load platform from dropping uncontrollably. Positioning is controlled either by means of limit switches or a position controller which allows individual movements or movement sequences.